摘要
元素硫的危害很大,不仅能毒害催化剂,同时也对炼油装置和储运设施造成腐蚀,严重影响企业的安全和效益。为了实现对元素硫的快速准确测定,建立了一种基于差分脉冲溶出伏安法检测油品中元素硫的分析方法,考察了富集时间、富集电位、脉冲振幅和扫描速率对实验结果的影响,并对14种样品进行分析,结果表明,所建方法准确可靠,加标回收率为98.0%~102.0%,可以用于汽油、喷气燃料和柴油中元素硫含量的测定。
Element sulfur has great damage to refinery equipments and storage facilities. A method was developed for the determination of element sulfur in petroleum products based on differential pulse stripping voltammerty. The effects of the deposition potential, deposition time, pulse amplitude and scan- ning rate on the experimental results were examined. The results demonstrate that this method is accu- rate and reliable,and the recovery rate is 98.0%-103.0%. Fourteen samples were analyzed by the developed method. It is proved that the method can determine the elemental sulfur in gasoline, kerosene and diesel.
出处
《石油炼制与化工》
CAS
CSCD
北大核心
2017年第3期97-100,共4页
Petroleum Processing and Petrochemicals
关键词
溶出伏安
元素硫
油品检测
stripping voltammetry
elemental sulfur
oil testing
